Network Security Administrator

Placements24; Upington; On-site; ZAR 166,000 - 277,000; Full time

Job summary

Placements24 is seeking a Network Security Administrator in Upington, Northern Cape to manage and secure the company’s network infrastructure. The role requires hands-on security implementation, monitoring, and incident response to protect confidentiality, integrity, and availability of network resources.

You will work with IT teams at the Upington, Northern Cape office, implementing security policies, conducting audits, and staying current with new threats and technologies.

Qualifications

• Bachelor's degree in CS/IT or equivalent experience.
• 3+ years of network admin or security engineer experience.
• Strong knowledge of TCP/IP, DNS, DHCP, HTTP/S.
• Hands-on with firewalls (Cisco ASA, Palo Alto, Fortinet) and VPNs.
• Familiarity with SolarWinds and Wireshark.
• Certs: CompTIA Network+/Security+, CCNA Security preferred.
• Excellent analytical and communication skills.

Responsibilities

• Install and maintain network security devices like firewalls, VPNs, IDPS.
• Monitor network performance and security events.
• Analyze traffic for anomalies and threats.
• Respond to security incidents and containment.
• Develop and enforce network security policies.
• Manage access and authentication.
• Conduct regular vulnerability assessments.
• Ensure devices are patched with updates.
• Collaborate with IT to maintain secure configurations.
• Document configurations and incident reports.

Skills

TCP/IP

Firewalls

VPNs

IDS/IPS

Network monitoring

Education

Bachelor's degree

Tools

Cisco ASA

Palo Alto

Fortinet

SolarWinds

Wireshark

Job description

About the Role

Our client is seeking a skilled Network Security Administrator to manage and secure their network infrastructure in Upington, Northern Cape. This role is critical for ensuring the integrity, confidentiality, and availability of our network resources. You will be responsible for implementing and maintaining network security measures, monitoring network traffic for suspicious activity, and responding to security incidents. This position requires a hands-on approach and a deep understanding of network protocols and security best practices. You will be an integral part of the IT team based in our Upington, Northern Cape office, working collaboratively to maintain a secure network environment.

Key Responsibilities

• Install, configure, and maintain network security devices such as firewalls, VPNs, intrusion detection/prevention systems (IDPS).
• Monitor network performance and security events using various monitoring tools.
• Analyze network traffic for anomalies and potential security threats.
• Respond to security incidents, including investigation, containment, and remediation.
• Develop and implement network security policies and procedures.
• Manage user access and authentication across network systems.
• Perform regular security audits and vulnerability assessments of the network infrastructure.
• Ensure network devices are patched and up-to-date with the latest security updates.
• Collaborate with IT teams to implement and maintain secure network configurations.
• Provide technical support and guidance on network security matters.
• Document network configurations, security measures, and incident reports.
• Stay informed about the latest network security threats and technologies.

Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent work experience.
• Proven experience (3+ years) as a Network Administrator or Network Security Engineer.
• Strong knowledge of network protocols (TCP/IP, DNS, DHCP, HTTP/S).
• Hands-on experience with firewalls (e.g., Cisco ASA, Palo Alto Networks, Fortinet), VPNs, and IDS/IPS.
• Familiarity with network monitoring tools (e.g., SolarWinds, Wireshark).
• Understanding of security best practices, encryption standards, and authentication methods.
• Experience with network configuration and troubleshooting.
• Relevant certifications such as CompTIA Network+, Security+, CCNA Security, or equivalent are highly desirable.
• Excellent analytical and problem-solving skills.
• Strong communication and interpersonal skills.

Benefits

This contractor position offers a competitive daily rate or hourly wage, commensurate with experience. While specific benefits are typical for contract roles, opportunities for extended engagement may arise based on performance and project needs. You will gain valuable experience working within a dedicated IT team in Upington, Northern Cape. This role provides a focused opportunity to apply and enhance your network security skills in a practical environment.